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You have something going on that probably needs a PE to look at- I would definitely replace, along with whatever the PE suggests.
Besides, if you were to sale anytime in the near future that would definitely be a Big Red Flag!
Its not an attached garage if that makes a difference. Home is 100 yo bungalow with a garage installed sometime later, probably around the 50's or 60's.
You have something going on that probably needs a PE to look at- I would definitely replace, along with whatever the PE suggests.
Besides, if you were to sale anytime in the near future that would definitely be a Big Red Flag!
It definitely needs a knowledgeable person (engineer probably) to take a look at the situation and try to find out the CAUSE of the problem. I don't know if the OP means that the 4" floor separation is vertical or horizontal, but regardless which it is, that is some serious displacement and the CAUSE needs to be addressed, not just the effect. Otherwise, the gap may just continue to grow even if the OP does something to fill it or level it out.
Poured on uncompacted dirt, not a good stone base.
No reinforcement with wire or rebar.
Not pinned to the foundation.
Recipe for failure.
$4000 might get you a concrete pour. Probably won't get you a good base and reinforcement.
I was thinking maybe 1-car garage only was the reason for the cheap quote, or they are pouring on top to bring the sunk portion up to level. But otherwise, $4K seems really low.
I was thinking maybe 1-car garage only was the reason for the cheap quote, or they are pouring on top to bring the sunk portion up to level. But otherwise, $4K seems really low.
Its not an attached garage if that makes a difference. Home is 100 yo bungalow with a garage installed sometime later, probably around the 50's or 60's.
Well, that certainly makes a big difference. That was most likely a quick slab on grade with no prep back then- or is there a stem wall around the sides and back? If you have stem walls, and the structure itself is in good condition, walls are plumb (no outward bowing), and the ridge is not sagging- then it’s just the slab, and ground heave during the winter.
This can be remedied by removing the existing, digging down to the original stem wall footing, add the appropriate amount of gravel, 1” XPS board (this will also serve as a vapor barrier- so no need for plastic sheeting vapor barrier), wire mesh and/or rebar. You’re ready for a new slab that will last longer than you or I. Best part, it’s not going crack and displace- or have moisture freezing in it; or sweating.
Need to replace my driveway and deciding on whether or not to replace the garage floor first.
The garage floor is cracked in that typical an X pattern that happens with about 4" of displacement.
It will be about 4K to fix it. Worth it?
I'll repeat. No. If it was worth it for YOU the job would have been done years ago.
The Q is whether or how urgently it will be worth it for the next owner. Let them decide.
Based on your later info ... the garage on that bad slab might need to go too (if/when)
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